The Bently Nevada 21504-002-012-10-02 is a model from the 7200 / 3300 XL series proximity transducer system, used for non-contact shaft vibration and displacement measurement in rotating machinery.
It is widely applied in:
- Gas & steam turbines
- Compressors
- Pumps
- Generators
- Industrial rotating equipment condition monitoring systems
This probe is part of a 3-component measurement chain:
Probe + Extension Cable + Proximitor Sensor
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Bently Nevada (GE) |
| Model | 21504-002-012-10-02 |
| Series | 3300 XL / 7200 proximity system family |
| Sensor Type | Eddy current displacement probe |
| Measurement | Shaft vibration / gap / position |
| Probe Diameter | 8 mm class |
| Mounting Type | Standard reverse/flush mount (system dependent) |
| Cable Code | “10” = ~1.0 m cable assembly (typical interpretation) |
| Connector Type | “02” = coaxial connector variant |
| Operating Temperature | approx. -40°C to +120°C (system dependent) |
Physical Characteristics
| Item | Specification |
|---|---|
| Probe Length | ~120–160 mm (depends on mounting variant) |
| Weight (probe only) | ≈ 0.1 – 0.18 kg ([reference family data]) |
| Shipping Weight | ~0.3 – 0.6 kg (with cable/packaging) |
| Material | Stainless steel housing + insulated tip |
| Installation | Radial shaft proximity mounting |
System Role
This probe works as part of a vibration monitoring chain:
- Measures gap between probe tip and shaft
- Sends signal to Proximitor driver
-
Driver converts signal into:
- Shaft vibration
- Position (axial/radial)
- Rotor dynamics
Used in critical machinery protection systems for real-time monitoring and shutdown protection.
